CN1296715A - Method for establishing signaling connection with mobile station - Google Patents
Method for establishing signaling connection with mobile station Download PDFInfo
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- CN1296715A CN1296715A CN99804784.8A CN99804784A CN1296715A CN 1296715 A CN1296715 A CN 1296715A CN 99804784 A CN99804784 A CN 99804784A CN 1296715 A CN1296715 A CN 1296715A
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- 230000011664 signaling Effects 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 30
- 101150069124 RAN1 gene Proteins 0.000 claims description 7
- 101100355633 Salmo salar ran gene Proteins 0.000 claims description 7
- 238000010295 mobile communication Methods 0.000 abstract description 7
- 101150117600 msc1 gene Proteins 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 101150014328 RAN2 gene Proteins 0.000 description 3
- 101100078001 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) MSC2 gene Proteins 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 101150081027 RNC1 gene Proteins 0.000 description 1
- 101100426111 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) TRM2 gene Proteins 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
Abstract
The invention comprises a method for establishing a signaling connection with a mobile station, which method is particularly applicable to third-generation mobile communications networks. A database is created at a node of a mobile communications network, and a mobile station connected with the network sends to said database information about all its subscriber identities (403). In the database, information is added (404) to the subscriber identity information which may be useful when said mobile station is paged (410, 411). Such contactability information includes e.g. the mobile station's location information, information about existing signaling connections and information about the primary paging channel monitored by the mobile station. The contactability information is updated according to changes detected in the status of the mobile station (406). The database will be discontinued for a mobile station that has had no connections for a predetermined time. The method reduces paging channel load in cells, reduces the need of mobile stations to listen to paging channels and makes radio access networks connections to multiple core networks more practical.
Description
What the present invention relates to define in the preorder of claim 1 sets up a kind of method that signaling is connected with travelling carriage.This method can be applied to for example 3G (Third Generation) Moblie net, for example UMTS (global system for mobile communications).
Fig. 1 has illustrated basic digital mobile communication system architecture.Mobile radio communication generally comprises at least one core net CN, and one or more wireless access network RAN.Core net CN comprises moving exchanging center MSC and other possible service node.Here, " node " is the generic name that participates in the network components of exchange; Therefore, it has also covered mobile switching centre and other switching equipment.Wireless access network is between core net and terminal equipment.Wireless access network comprises base station BTS and wireless network controller (RNC).Each base station BTS is connected to the wireless network controller (RNC) of this wireless access network with fixed form.Each wireless network controller then is connected at least one core net node with fixed form.
The General Principle of paging as shown in Figure 2 in the digital mobile communication network.Arrive called subscriber's moving exchanging center MSC of place service area at that time if call out, then switching center sends the paging request by radio network controller to such base station, and register data indication called subscriber is arranged in these base station area.The base station sends beep-page message to wireless path on its paging channel PCH.Travelling carriage detects it self user ID on the paging channel of its monitoring, send response to the base station.In this way, network will be known called subscriber's position with the precision of sub-district, set up data and connect.In this description and appended claims, " data connection " is meant the suitable connection of setting up into the signal of emission.Usually, the common type that connects of data is that speech connects.
In the 3G (Third Generation) Moblie net, travelling carriage may have a plurality of IMSI International Mobile Subscriber Identity IMSI, can also have the data of a plurality of whiles to connect under the different user sign.If travelling carriage does not have data to connect, then the calling according to prior art always starts above-mentioned paging processing.The data through given core net connect under certain user ID if travelling carriage has, and another node receives the calling that is associated with another user ID of travelling carriage, then also starts common paging in this case and handles.A defective of this process is, in principle, has unnecessarily used the network signal capacity, because the positional information of this travelling carriage is in network, and travelling carriage may be monitored the plurality of paging channel.Do not support to mail to the calling of same travelling carriage from different core net according to the scheme of prior art.The data connection that is established to single mobile station from different core net is possible in principle, but it needs to be transmitted to all base stations and all paging channel from the beep-page message of one of core net, and called mobile station is monitored all paging channel of using in this sub-district.If beep-page message only sends on given paging channel, then may be because of existing connection, this travelling carriage can't be monitored this paging channel.
An object of the present invention is to reduce the aforementioned defective relevant with prior art as far as possible.Feature according to method of the present invention is independently providing in the claim.The preferred embodiments of the present invention are described in related right requires.
Basic thought of the present invention is as follows.At the suitable network node of each wireless access network, for example in the radio network controller (RNC), create the paging data storehouse and connect required signaling to reduce setting up data.Collect the data useful in the paging data storehouse to called mobile station.For example, when the data that are established to travelling carriage under given user ID connect, this travelling carriage is with the stipulated form informing network for example during the call setup, and all user ID that its uses during connecting after are perhaps perhaps used the single message that for example is independent of possible connection.Network identifies these and location of mobile station information, and may be stored in the paging data storehouse with the signaling connection data of described data join dependency connection.If during described connection, this travelling carriage enters another sub-district, then upgrades the data relevant with travelling carriage in the paging data storehouse.If in described or follow-up connection, in another user ID of the same travelling carriage of arbitrary node paging, then Network Check paging data storehouse utilizes the data of wherein finding to set up signaling and connects.
When the mobile station data connection termination, the data that are associated with travelling carriage preferably remain in the paging data storehouse, have passed through specific predetermined amount of time after connection termination at least.
An advantage of the present invention is, has reduced paging channel load in the sub-district, handles because do not need that paging is carried out in calling, does not need when data connect Already in travelling carriage at least.From the travelling carriage angle, this means that it does not need monitoring seek channel during data connect.Another advantage of the present invention is, do not have data to connect at the travelling carriage of calling out, but when in the database of the present invention its information being arranged, it is just enough only to send beep-page message to a paging channel.From the travelling carriage angle, this means that it only needs to monitor a paging channel.Another advantage of the present invention is that it is feasible that the connection from different core net to same Radio Access Network will become.This is because if find the user ID that is associated with calling from " outside " core net in according to database of the present invention, then can utilize the information that is associated with this sign to carry out paging.For this calling, travelling carriage only needs to monitor a paging channel, the most ideally, does not even need monitor channel.Another advantage of the present invention is, if use general packet radio service gprs, then need not transmit user totem information between moving exchanging center MSC and Serving GPRS Support Node SGSN.Another advantage of the present invention is that establishment of connection is faster in the time of travelling carriage.
Describe the present invention below in detail.Please referring to accompanying drawing, in the accompanying drawings:
Fig. 1 shows the example that can use a kind of network architecture of the present invention;
Fig. 2 has illustrated according to the signaling in the paging of prior art;
Fig. 3 shows the signaling according to a kind of preferred embodiment of the present invention;
Fig. 4 shows the block diagram of explanation according to the operation of the preferred embodiment of the present invention by example;
Fig. 5 shows second example according to the operation of the preferred embodiment of the present invention with the block diagram form;
Fig. 6 shows the example of transmission according to the user totem information of a kind of preferred embodiment of the present invention, and
Fig. 7 shows second example of transmission according to the user totem information of a kind of preferred embodiment of the present invention.
Similar elements is represented by similar invoking marks in the accompanying drawing.
Fig. 1 has done discussion at basic network architecture.Fig. 1 shows two core net CN1 and CN2, and they can belong to the mobile radio communication of different operators.In this embodiment, core net CN1 comprises a moving exchanging center MSC 1 and a Serving GPRS Support Node SDSN at least.Wireless access network RAN1 and RAN2 for example are positioned at the service area of the MSC1 of switching center of core net CN1.The controller (RNC) 1 of wireless access network RAN1 and the controller (RNC) 2 of wireless access network RAN2 are connected to MSC1 of switching center and node SGSN with fixed form.Terminal in the network is connected to the base station by wireless path.In Fig. 1, mobile station MS is positioned at the service area of the base station BTS 1 of wireless access network RAN1, perhaps sub-district, and it is connected to base station BTS 1.
In Fig. 1, different with common scheme, there is connection from the controller (RNC) 1 of wireless access network RAN1 to the MSC2 of switching center of another core net CN2.If for example the operator of core net CN2 wishes to reduce the volume of business of wireless access network RAN1, then can provide this connection.In addition, the radio network controller (RNC) 1 of Fig. 1 has according to paging data of the present invention storehouse 101, in order to improve professional control.For simplicity's sake, Fig. 1 does not illustrate the wireless access network RAN1 of core net CN1 and CN2 and additional firmware or the software part of RAN2.
Fig. 2 simply discussed in the above.It shows a example according to paging pathfinding of the present invention with the form of sequential chart.Participating in this signaling is mobile switch MSC, at least one radio network controller (RNC), a plurality of base station BTS and mobile station MS.At first, call out the arrival moving exchanging center MSC.Information in information in calling out according to this and the register related with this switching center, switching center will call out with the used user ID IMSI2 of mobile station MS and be associated.Mobile station MS can have the data of early setting up under the user ID to connect simultaneously.Switching center sends wireless access network in this travelling carriage region is indicated in the paging request that comprises user ID IMSI2 to register data controller (RNC).Based on this paging request, each controller (RNC) sends beep-page message to its regional base station BTS, and each base station sends beep-page message to wireless path at least one paging channel PCH.Each enlivens travelling carriage and monitors at least one paging channel.Described mobile station MS detects himself user ID IMSI2 in beep-page message, send the base station of response message to its sub-district, place.The base station sends response message to each radio network controller (RNC), and RNC sends response message subsequently to the MSC of switching center.This response message comprises the information of indicating sub-district, mobile station MS place, and MSC sends the connection request that new data connects according to this information to suitable radio network controller (RNC).Described controller sends necessary instruction to suitable base station BTS in connection message.Fig. 2 does not provide the step relevant with the data establishment of connection.
Fig. 3 shows a example according to the operation of a preferred embodiment of the present invention with the form of sequential chart, and it is corresponding to example shown in Figure 2.Begin to the operation starting stage that the paging request is sent at least one radio network controller (RNC) all identical from calling with Fig. 2 example.In this embodiment, at least one radio network controller (RNC), set up according to database 101 of the present invention.In addition, in this embodiment, connect in the data that this calling has under the user ID IMSI1 constantly as the mobile station MS of call targets.Because this connection early, database 101 comprises the location of mobile station information that precision is a unit.Because controller (RNC) receives the paging request of IMSI2, it checks 301 paging data storehouses 101.As the result who checks, if find that location of mobile station information is IMSI2.Therefore, controller (RNC) sends response message immediately to the MSC of switching center.Can skip paging like this handles.If switching center receives response message, then operation resembles and continues the example of Fig. 2.
Fig. 4 shows according to a preferred embodiment of the present invention with the block diagram form, uses an example in paging data storehouse 101 in Fig. 1 network.In frame 401, the mobile station MS opening power, this travelling carriage has the first user ID IMSI1 and the second user ID IMSI2 at least, thus travelling carriage enters active mode.In frame 402, to call out from the mobile station MS transmitting-receiving, thereby under sign IMSI1, pass through base station BTS 1, controller (RNC) 1 is connected with first data that the MSC1 of switching center is established to another terminal.In frame 403, all user ID that mobile station MS sends it with machine made message mode are to specific signaling channel.In frame 404, radio network controller (RNC) 1 receives described message, and this software is stored in the user ID that provides in this message in the paging data storehouse 101.Simultaneously, with the contact details of mobile station MS, this information can obtain based on the connection of first data, is stored in the database 101.In frame 105, determine to have the strong base station of high field at mobile station MS.Under handover case, upgrade the contact details of travelling carriage in the database 101, shown in frame 406.Here with claims in, contact details refer to be used to set up the useful data that the signaling of travelling carriage connects.Described data can comprise for example travelling carriage place cell information, the signaling link information that the travelling carriage data with existing connects, and the main paging channel information of mobile station supervision.
In frame 407, check whether the calling of mailing to mobile station MS has arrived arbitrary core network node.In frame 408, possible calling is divided into two groups: if the calling related with the second user ID IMSI2 arrives " former " node, be the MSC1 of switching center in this case, described switching center can find out from register information that the travelling carriage corresponding to sign IMSI2 has the data with existing connection that identifies under the IMSI1.In frame 409, the information of the sign IMSI1 in switching center's software discovery register.The MSC1 of switching center instruction control unit RNC1 subsequently is established to and has sign IMSI1, but the data of the same travelling carriage under sign IMSI2 connect now.Shown in frame 412, signaling uses first data to connect used signaling connection.Therefore, in the branch of frame 409 representatives, can set up (frame 413) new data and connect, and need not new paging, need be according to operation of the present invention yet.
If mailing to the node of the calling arrival of mobile station MS is not MSC1, for example is node SGSN or the MSC2 of switching center, then this node is that mobile station MS sends the paging request to radio network controller (RNC) 1, shown in frame 410.In frame 411, the software in the controller (RNC) 1 retrieves the positional information corresponding to the second user ID IMSI2 from paging data storehouse 101.According to described information, controller (RNC) 1 is known need be with signaling, thereby can set up new connection, and the correct base station that does not need paging to handle.In addition, also from database 101, fetch the signaling related and connect, then, in setting up new data connection (frame 412), use this information with the connection of first data.After this, above-mentioned fast paging can repeat, and connects until having discharged first data, exists as long as connect.
Fig. 5 shows in Fig. 1 network with the block diagram form, according to second example of the use in the paging data storehouse 101 of a preferred embodiment of the present invention.This example has illustrated the paging of mobile station MS, and the data connection of this mobile station MS stops, but still is in active mode.In frame 501, last data that discharges user ID IMSI1 connect.After this, travelling carriage is in standby mode.Here with claims in, the standby mode of travelling carriage is meant a kind of like this pattern, wherein travelling carriage is in after the data connection termination, perhaps travelling carriage prepare to receive new the calling.During standby mode, network is with the position (parts 502) of the precision monitoring travelling carriage of the positioning area LA that comprises a plurality of sub-districts.If desired, upgrade the contact details of mobile station MS in the paging data storehouse 101, shown in frame 503.In frame 504, check whether the calling of mailing to mobile station MS arrives core net node.Do not arrive if call out in the scheduled time, travelling carriage does not initiate to connect, and then the paging data storehouse will stop this travelling carriage.Overtime monitoring does not have shown in Figure 5, if new the calling arrives, this core net node sends the paging request to radio network controller (RNC) 1, shown in frame 505 with normal mode.This calling can be related with the used Any user of mobile station MS sign.In frame 506, the software in the controller (RNC) 1 receives the relevant information with sign IMSI1 from the paging data storehouse.In frame 507, check whether positional information is changed after discharging last data connection.If place positioning area when discovery travelling carriage place positioning area is different from the last data connection termination then starts paging and handles (frame 509) in this zone.If the place positioning area is identical when finding travelling carriage place positioning area with the last data connection termination, then send beep-page message (frame 508) to the indicated sub-district of the positional information relevant with sign IMSI1.This can finish, because mobile station MS sub-district, place may be positioned at the last data connection termination time.If but its not response then needs to carry out paging more widely and handles.This describes in Fig. 5, sets up new data by relative signaling and connects also not in this figure description.
Fig. 6 shows an example that sends user totem information according to the preferred embodiment of the present invention.Identification information 61 is placed in the random access message 62 that generates in Media Access Controlled (MAC) part of data link layer (second layer), goes up at RACH (RACH) to send.
Fig. 7 shows an example that sends user totem information according to second preferred embodiment of the invention.Identification information 71 is placed in the particular message 72 that generates in Radio Resource control (RRC) part of network layer (the 3rd layer).Data link layer (second layer) adds the control section of himself on message 72.Results messages 73 sends on signal wireless carrier (SRB) channel of rrc layer message being used for.
The name of signal, channel, system and system unit, and the name of other object that uses in these examples follows the planning of so-called 3-G (Generation Three mobile communication system), the latter is here just by the example discussion, with provide of the present invention may examples of applications.The present invention uses and is not limited to any specific mobile communication system.
More than described according to function of the present invention.The present invention is not limited to such scheme.For example, the paging data storehouse can be set up at core net node.Paging data storehouse size can not only limit in the following manner: the restriction that can keep mobile station data under the standby mode is set, but also can limits by specific condition for example by specifying.User totem information can also perhaps send in the message that is the travelling carriage parameter value for example in page-response message.The innovation thought can be improved in the defined scope of appended claim book in many ways.
Claims (19)
1. method that foundation is connected with the signaling of travelling carriage in the network, this network comprises at least one wireless access network (RAN) and at least one core net (CN), and at least some travelling carriages have been assigned at least two user ID in this method, it is characterized in that, in the step that this method comprises
-create the described paging data storehouse (101) of the user ID of travelling carriage active in the service area of the node comprise the paging data storehouse,
The subsidiary contact details that corresponding travelling carriage is arranged of-described user ID,
-described user ID is connected with the signaling of enlivening travelling carriage that contact details are used to set up with being positioned at described service area, and
-upgrade described contact details according to the change of detected contact details.
2. according to the method for claim 1, it is characterized in that paging data storehouse (101) are positioned at wireless access network (RAN).
3. according to the method for claim 1, it is characterized in that paging data storehouse (101) are positioned at core net (CN).
4. according to the method for claim 1, it is characterized in that described contact details comprise the positional information of relevant described travelling carriage.
5. according to the method for claim 1, it is characterized in that described contact details comprise the information that is connected with the signaling of the data join dependency of described travelling carriage connection.
6. according to the method for claim 1, it is characterized in that described contact details comprise the information of the main paging channel that described travelling carriage is monitored.
7. according to the method for claim 1, wherein travelling carriage (MS) uses first and second user ID (IMSI1, IMSI2), first data that described travelling carriage (MS) has first wireless access network of setting up down by first user ID (IMSI1) (RAN1) connect, mail to the calling that is associated with second user ID (IMSI2) of described travelling carriage (MS), the core net node that arrival links to each other with first wireless access network, it is characterized in that the signaling that the desired signaling of described calling is used connects the used signaling of signaling that connects with first data and connects identical.
8. according to the method for claim 6, wherein travelling carriage uses more than a user identifier, one of them is main user ID (IMSIm), it is stored in the paging data storehouse, described travelling carriage is in standby mode, the calling of mailing to described travelling carriage arrives the core net node that links to each other with wireless access network in the described travelling carriage region, it is characterized in that, according to the paging data storehouse contact details that are associated with main user ID (IMSIm), will send to paging channel corresponding to the beep-page message of described calling.
9. according to the method for claim 4, wherein travelling carriage uses the first and second user ID (IMSI1 under the standby mode, IMSI2), having the data of setting up under first user ID connects, mail to the calling that is associated with second user ID (IMSI2) of described travelling carriage (MS), the core net node that arrival links to each other with wireless access network in the described travelling carriage region, it is characterized in that, according to the paging data storehouse contact details that are associated with first user ID (IMSI1), will send to sub-district from the controller of described wireless access network corresponding to the beep-page message of described calling corresponding to this positional information.
10. according to the method for claim 1, it is characterized in that in order to collect described user totem information in the paging data storehouse, the travelling carriage that has data to be connected with network sends the information of its all used user ID to network under certain user ID.
11. method according to claim 10, wherein said travelling carriage uses MAC layer signaling at least, uses a signaling channel to be used for MAC layer message at least, it is characterized in that, described user totem information is included in the MAC layer message, and sends on the channel that is used for MAC layer message.
12. the method according to claim 10 is characterized in that, the described signaling channel that is used for MAC layer message is RACH.
13. method according to claim 10, wherein said travelling carriage uses the rrc layer interacting message at least, uses a signaling channel to be used for rrc layer message at least, it is characterized in that, described user totem information is included in the rrc layer message, and sends on the channel that is used for rrc layer message.
14. the method according to claim 13 is characterized in that, the described signaling channel that is used for rrc layer message belongs to the SRB channel.
15. the method according to claim 13 is characterized in that, described rrc layer message is for transmitting the message of the special definition of user totem information.
16. according to the method for claim 13, wherein said travelling carriage is paging receiving message during the data establishment of connection, sends the response message of beep-page message, it is characterized in that described user totem information is included in the described response message of beep-page message.
17. the method according to claim 13 is characterized in that, described user totem information is included in the message of this travelling carriage parameter value of indication.
18. according to the process of claim 1 wherein that the data that travelling carriage has under first user ID connect, it is characterized in that, when described travelling carriage when a sub-district moves to another sub-district, upgrade the contact details that are associated with first user ID.
19. method according to claim 1, wherein the travelling carriage under the standby mode has the data connection under first user ID, it is characterized in that, when described travelling carriage when a positioning area (LA) moves to another positioning area, upgrade the contact details that are associated with first user ID.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI980783A FI107689B (en) | 1998-04-03 | 1998-04-03 | A method for establishing a signaling connection |
| FI980783 | 1998-04-03 |
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| CN1296715A true CN1296715A (en) | 2001-05-23 |
| CN1119062C CN1119062C (en) | 2003-08-20 |
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| CN99804784A Expired - Lifetime CN1119062C (en) | 1998-04-03 | 1999-04-01 | Method for establishing signaling connection with mobile station |
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| US (1) | US6792278B1 (en) |
| EP (1) | EP1068758B1 (en) |
| JP (1) | JP3634750B2 (en) |
| CN (1) | CN1119062C (en) |
| AU (1) | AU3150299A (en) |
| BR (1) | BR9909396B1 (en) |
| DE (1) | DE69905024T2 (en) |
| ES (1) | ES2192040T3 (en) |
| FI (1) | FI107689B (en) |
| WO (1) | WO1999052317A2 (en) |
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| CN100421513C (en) * | 2005-03-24 | 2008-09-24 | 华为技术有限公司 | Method for realizing cooperation paging of wireless network controller |
| CN100450294C (en) * | 2005-08-23 | 2009-01-07 | 华为技术有限公司 | Method of user paging in mobile communication system |
| CN100440838C (en) * | 2005-11-10 | 2008-12-03 | 中兴通讯股份有限公司 | Terminal wireless access method and its system |
| WO2007137517A1 (en) * | 2006-05-18 | 2007-12-06 | Huawei Technologies Co., Ltd. | A method and device for allocating a channel for a called party |
| WO2008092346A1 (en) * | 2007-01-25 | 2008-08-07 | Huawei Technologies Co., Ltd. | A method, system and apparatus for establishing the signaling bearer |
| US8738018B2 (en) | 2008-06-09 | 2014-05-27 | Mediatek, Inc. | Communication method for a mobile station communicating with a communication network, and associated mobile station |
| US8463277B2 (en) | 2008-06-09 | 2013-06-11 | Mediatek Inc. | Method for allocating paging resource to a mobile station having multiple subscriber identities and resource allocating apparatus thereof |
| CN101605361B (en) * | 2008-06-09 | 2015-05-27 | 联发科技股份有限公司 | Method for allocating paging resource and resource allocating apparatus thereof |
| CN104812068A (en) * | 2008-06-09 | 2015-07-29 | 联发科技股份有限公司 | Mobile station and relative communication method |
| CN104812068B (en) * | 2008-06-09 | 2018-09-07 | 联发科技股份有限公司 | Mobile station and related communications method |
| US8626206B2 (en) | 2009-02-05 | 2014-01-07 | Zte (Usa) Inc. | Paging mechanisms for mobile stations with multiple subscriptions |
| CN101800975A (en) * | 2009-02-05 | 2010-08-11 | 中兴通讯美国公司 | Paging mechanisms for mobile stations with multiple subscriptions |
| CN101800975B (en) * | 2009-02-05 | 2015-01-14 | 中兴通讯美国公司 | Paging mechanisms for mobile stations with multiple subscriptions |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3634750B2 (en) | 2005-03-30 |
| ES2192040T3 (en) | 2003-09-16 |
| AU3150299A (en) | 1999-10-25 |
| BR9909396A (en) | 2000-12-05 |
| US6792278B1 (en) | 2004-09-14 |
| FI107689B (en) | 2001-09-14 |
| FI980783A (en) | 1999-10-04 |
| WO1999052317A3 (en) | 1999-12-23 |
| JP2002511679A (en) | 2002-04-16 |
| WO1999052317A2 (en) | 1999-10-14 |
| FI980783A0 (en) | 1998-04-03 |
| DE69905024D1 (en) | 2003-02-27 |
| BR9909396B1 (en) | 2014-03-18 |
| EP1068758B1 (en) | 2003-01-22 |
| EP1068758A2 (en) | 2001-01-17 |
| DE69905024T2 (en) | 2003-10-02 |
| CN1119062C (en) | 2003-08-20 |
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